package com.mantou.cdl.utils;

import java.util.concurrent.ThreadFactory;
import java.util.concurrent.atomic.AtomicInteger;
/**
 * 
 * @author wuboping
 */
public class DefaultThreadFactory implements ThreadFactory {
	private static final AtomicInteger poolNumber = new AtomicInteger(1);
	private final ThreadGroup group;
	private final AtomicInteger threadNumber = new AtomicInteger(1);
	private final String namePrefix;

	private DefaultThreadFactory() {
		this("crawler thread");
	}

	public DefaultThreadFactory(String name) {
		SecurityManager s = System.getSecurityManager();
		group = (s != null) ? s.getThreadGroup() : Thread.currentThread()
				.getThreadGroup();
		namePrefix = "pool-" + poolNumber.getAndIncrement() + "-" + name
				+ "-";
	}

	public Thread newThread(Runnable r) {
		Thread t = new Thread(group, r, namePrefix
				+ threadNumber.getAndIncrement(), 0);
		if (t.isDaemon()) {
			t.setDaemon(false);
		}
		if (t.getPriority() != Thread.NORM_PRIORITY) {
			t.setPriority(Thread.NORM_PRIORITY);
		}
		return t;
	}
}
